Analysis

  • max time kernel
    96s
  • max time network
    137s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    26-09-2021 21:01

General

  • Target

    364b903484dd52bfd9b0dfacc6fcb7730ee3751cd3059a0d9a1f6feaa4f11740.exe

  • Size

    1.5MB

  • MD5

    bbcc8be905af74246d8c87a5addae059

  • SHA1

    2db0ce1f8bc101d2154c5d09ee52f59923255cf5

  • SHA256

    364b903484dd52bfd9b0dfacc6fcb7730ee3751cd3059a0d9a1f6feaa4f11740

  • SHA512

    5ecef0b375ec80c8de03fe00cc1f3a23e6aec044e94b113053f37273b9bf367af40d2ddea1b1fd8636c6ff247d31dc16bf8eccc73ed4b5496509b0f563cad644

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 2 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Program crash 13 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\364b903484dd52bfd9b0dfacc6fcb7730ee3751cd3059a0d9a1f6feaa4f11740.exe
    "C:\Users\Admin\AppData\Local\Temp\364b903484dd52bfd9b0dfacc6fcb7730ee3751cd3059a0d9a1f6feaa4f11740.exe"
    1⤵
    • Loads dropped DLL
    PID:804
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 920
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1180
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1028
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1416
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1096
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1596
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1492
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1728
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1952
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1676
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2152
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1492
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1752
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1788
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1720
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3140
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1668
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1808
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3188
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1820
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3536

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \ProgramData\mozglue.dll
    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll
    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/804-114-0x0000000000720000-0x0000000000721000-memory.dmp
    Filesize

    4KB

  • memory/804-116-0x0000000000400000-0x000000000057E000-memory.dmp
    Filesize

    1.5MB

  • memory/804-115-0x0000000002980000-0x0000000002A9B000-memory.dmp
    Filesize

    1.1MB